Overlock stitch sewing machine



FIG. 1 is a front elevational view of a first embodiment of an overlockstitch sewing machine showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a front perspective view thereof with a handle member in analternate position;

FIG. 8 is a front elevational view of a second embodiment of an overlockstitch sewing machine;

FIG. 9 is a rear elevational view thereof;

FIG. 10 is a top plan view thereof;

FIG. 11 is a bottom plan view thereof;

FIG. 12 is a right side elevational view thereof;

FIG. 13 is a left side elevational view thereof; and

FIG. 14 is a front perspective view thereof with a handle member in analternate position.

The ornamental design for an overlock stitch sewing machine, as shown.